1982 Evinrude Torque Values

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  • March 29, 2026 at 7:51 pm #312858
    Bob Wight
    Participant

      US Member

      Just started working on a 1982 Evinrude 25hp and I don’t have any service information on it.   Anybody have the correct torque values for the following:

      Cylinder head bolts

      Cylinder head cover bolts

      Exhaust cover bolts

      Flywheel nut

      Bob

      1937 Champion D2C Deluxe Lite Twin
      1954 Johnson CD-11
      1955 Johnson QD-16
      1957 Evinrude Fastwin 18
      1957 Evinrude 3022
      1958 Johnson QD-19
      1958 Johnson FD-12
      1959 Johnson QD-20
      1982 Evinrude 25hp

      “Every 20 minute job is only a broken bolt away from a 3-day project.”
      "Every time you remove a broken or seized bolt an angel gets his wings."

      March 29, 2026 at 10:04 pm #312874
      JACQUES
      Participant

        this was  the torque specs for the oldies…should be ok for a modern …1982 engine

        Bolt Depot – US Recommended Bolt Torque

        Updated Bolt Chart Draft 3

         

        Torque-Chart-OMC-1-1

        Joining AOMCI has priviledges 🙂

        March 29, 2026 at 11:13 pm #312890
        Bob Wight
        Participant

          US Member

          I have this same chart for the older OMC’s but don’t know what might be different for the motor I’m working on.

          Bob

          1937 Champion D2C Deluxe Lite Twin
          1954 Johnson CD-11
          1955 Johnson QD-16
          1957 Evinrude Fastwin 18
          1957 Evinrude 3022
          1958 Johnson QD-19
          1958 Johnson FD-12
          1959 Johnson QD-20
          1982 Evinrude 25hp

          “Every 20 minute job is only a broken bolt away from a 3-day project.”
          "Every time you remove a broken or seized bolt an angel gets his wings."

          March 30, 2026 at 9:21 am #312960
          Don
          Participant

            US Member

            Give me a day or so, will look up the exact specs for you

            March 30, 2026 at 10:07 am #312967
            Don
            Participant

              US Member

              Cylinder head bolts:  216-240 inch pounds

              flywheel nut:  100-105 foot pounds

              Cylinder head water/thermostat cover:  60-84 inch pounds

              Exhaust cover screws:  60-84 inch pounds

              1 user thanked author for this post.
              Bob Wight
              March 30, 2026 at 7:26 pm #313082
              Bob Wight
              Participant

                US Member

                Don – thank you very much!

                Bob

                1937 Champion D2C Deluxe Lite Twin
                1954 Johnson CD-11
                1955 Johnson QD-16
                1957 Evinrude Fastwin 18
                1957 Evinrude 3022
                1958 Johnson QD-19
                1958 Johnson FD-12
                1959 Johnson QD-20
                1982 Evinrude 25hp

                “Every 20 minute job is only a broken bolt away from a 3-day project.”
                "Every time you remove a broken or seized bolt an angel gets his wings."

                March 30, 2026 at 8:54 pm #313095
                Bob Wight
                Participant

                  US Member

                  Don – do you also have torque values for crankcase bolts and connecting rod screws?

                  Bob

                  1937 Champion D2C Deluxe Lite Twin
                  1954 Johnson CD-11
                  1955 Johnson QD-16
                  1957 Evinrude Fastwin 18
                  1957 Evinrude 3022
                  1958 Johnson QD-19
                  1958 Johnson FD-12
                  1959 Johnson QD-20
                  1982 Evinrude 25hp

                  “Every 20 minute job is only a broken bolt away from a 3-day project.”
                  "Every time you remove a broken or seized bolt an angel gets his wings."

                  March 30, 2026 at 10:34 pm #313123
                  Don
                  Participant

                    US Member

                    Give me a day or so to look it up

                    April 3, 2026 at 11:06 am #313766
                    Don
                    Participant

                      US Member

                      Connecting rod screws:  30-32foot pounds

                      Six crankcase main bearing retaining bolts:  168-192 inch pounds

                      Eight smaller crankcase flange screws:  60-84 inch pounds

                      Lower crankcase head/seal screws:  60-84 inch pounds

                       

                      1 user thanked author for this post.
                      Bob Wight
                      April 3, 2026 at 7:45 pm #313841
                      Bob Wight
                      Participant

                        US Member

                        Don – thanks again!

                        Bob

                        1937 Champion D2C Deluxe Lite Twin
                        1954 Johnson CD-11
                        1955 Johnson QD-16
                        1957 Evinrude Fastwin 18
                        1957 Evinrude 3022
                        1958 Johnson QD-19
                        1958 Johnson FD-12
                        1959 Johnson QD-20
                        1982 Evinrude 25hp

                        “Every 20 minute job is only a broken bolt away from a 3-day project.”
                        "Every time you remove a broken or seized bolt an angel gets his wings."

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